Fiction by Curtis Sittenfeld
I read this book a little bit ago but I remember it well. It's about Laura Bush, although she is thinly disguised and called Alice Blackwell in the novel.
The story was a really interesting look at what it might be like to fall in love with a man from a powerful political family, a man destined to do great things but not necessarily good things. Being a First Lady means being married to someone who is never truly yours, someone who can't really care about what you think, and being completely forbidden to complain about either of those things.
I don't know how accurate this book is as far as Laura's real feelings, but it was a great character study.
